28873271199240 has 768 divisors, whose sum is σ = 103529064038400. Its totient is φ = 6935904847872.

The previous prime is 28873271199221. The next prime is 28873271199287. The reversal of 28873271199240 is 4299117237882.

28873271199240 is a `hidden beast` number, since 2 + 8 + 87 + 327 + 1 + 199 + 2 + 40 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 14415012079 + ... + 14415014081.

It is an arithmetic number, because the mean of its divisors is an integer number (134803468800).

Almost surely, 2^{28873271199240} is an apocalyptic number.

28873271199240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28873271199240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51764532019200).

28873271199240 is an abundant number, since it is smaller than the sum of its proper divisors (74655792839160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28873271199240 is a wasteful number, since it uses less digits than its factorization.

28873271199240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2546 (or 2539 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 63.

The spelling of 28873271199240 in words is "twenty-eight trillion, eight hundred seventy-three billion, two hundred seventy-one million, one hundred ninety-nine thousand, two hundred forty".